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040 _e179696
_aMAIN
041 _aEnglish
082 _a300.72 A81R
100 _aAttar Singh
245 0 _aResearch methodology
260 _aNew Delhi
_bMohit Publications
_c2010
300 _avi, 242 p.
942 _cBK
999 _c151521
_d151521